Grantly returns to teaching at Waterloo Road to discover the school is chaotic as ever. Kacey faces her big boxing fight, but Barry takes bets against her winning. And Sue resorts to tranquilisers to get through her school day from hell.

The staff and pupils of Waterloo Road get all dressed up for living history week. Christine is looking to impress a visiting Robert Bain, but Simon is on a mission to prove what a bad headteacher she is - and with all the problems that occur, his task is not a difficult one.